Controller IC, DC-AC conversion apparatus, and parallel...

Details Controller IC, DC-AC conversion apparatus, and parallel... Controller IC, DC-AC conversion apparatus, and parallel...

2005-11-10

2008-07-01

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S025000, C363S134000, C363S056060

Reexamination Certificate

active

07394671

ABSTRACT:
A DC power source voltage is supplied to a center tap of a primary winding, and first and second semiconductor switches alternately turned on are disposed between each of both ends of the primary winding and a common potential point, and a current flowing through a load is fed back and PWM control of each of the semiconductor switches is performed. Also, snubber circuits are respectively connected between a ground and the center tap of the primary winding, and an abnormal high voltage at the time of switching is reduced. Also, a parallel running of plural inverters is simply performed by disposing PWM comparators corresponding to the first and second semiconductor switches.

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